Project Details
Projekt
Transport properties of intercalated graphene on the atomic scale
Applicant
Privatdozent Dr. Martin Wenderoth
Subject Area
Experimental Condensed Matter Physics
Term
since 2021
Project identifier
Deutsche Forschungsgemeinschaft (DFG) - Project number 449119662
The electronic and transport properties of epitaxial graphene (EG) are significantly affected by the interaction with the substrate silicon carbide (SiC). Moreover, intercalation was demonstrated to be a versatile tool to tailor the electronic properties of graphene. As part of the DFG research unit FOR5242 ”Proximity-induced correlation effects in low dimensional systems”, the specific goal of this project is to characterize electronic and transport properties of epitaxial and intercalated graphene on the atomic scale. To this end, we will analyze the structural and electronic properties by scanning tunneling microscopy and spectroscopy with a strong focus on local transport properties using scanning tunneling potentiometry. We aim to disentangle the different scattering processes in graphene and to unravel the impact of a given parameter on structural, electronic and transport properties including proximity-induced correlations. An experimental characterization of the spatial variation of transport properties reflecting the lateral inhomogeneous interaction of epitaxial graphene with the substrate is needed to eventually understand the influence of proximity on macroscopically averaged physical properties of epitaxial and intercalated graphene. Combining the local, atomic scale information with the results from other projects of the DFG research unit FOR5242, we aim to develop a comprehensive understanding of proximity-induced effects including strong correlations in graphene. Specifically, will address the topic of Klein-tunneling, Mott-Hubbard-like systems coupled to EG, the impact of intercalated alloys on transport properties as well as proximity-induced superconductivity.
DFG Programme
Research Units
